Identify chemicals with radio frequencies - Nuclear Quadrupole Resonance (MRI without magnets) скачать в хорошем качестве

Identify chemicals with radio frequencies - Nuclear Quadrupole Resonance (MRI without magnets)

How to build and test an NQR spectrometer, which is similar to MRI, but uses no magnets. NQR frequencies are unique among all tested compounds, so detecting a resonance indicates a near certainty that a specific chemical is present. Tektronix 2-series oscilloscope: https://www.tek.com/en/products/oscil... Video capture was done via VNC client Zeeman effect shifting optical spectral lines:    • Candle flame is repelled by magnets (and Z...   Atomic clock calibration using Zeeman effect:    • How an Atomic Clock Really Works, Round 2:...   W2AEW's RF tutorial on quarter wave transmission lines:    • #200: T/R Switch w/ PIN Diodes and Lumped ...   Water deflected by electric field:    • How a liquid lens works (electrowetting)   Litz wire only helpful between 50KHz and 1.5MHz -    • Resonant Magnet-Field Antennas Pt.4: Skin-...   Support Applied Science on Patreon:   / appliedscience   Q/A Why use vacuum variable capacitors? The parallel LC circuit develops well over 1000 volts during transmit, and they are much easier to finely adjust over a large range. I've spent quite a few hours making this work since late last year. I failed to detect a signal from urea, which burned dozens of hours. Switching to NaNO2 suddenly produced a huge signal. NQR calculations spreadsheet - https://docs.google.com/spreadsheets/... NQR references (many!) : https://docs.google.com/document/d/1X...